Expanded notation is the term given in elementary mathematics education for the expansion of a positive integer in the form sum_k b_k 10^k, i.e., as a sum of appropriate powers of 10 (the base of the expansion) times its digits (in the case of base-10, decimal digits). For example, the number with decimal expansion 1234 would be written in expanded form as 1234 = 1×1000 + 2×100 + 3×10 + 4. Negative k are also allowed in expanded notation of arbitrary (not necessarily integer) numbers, e.g., 1234.56 = 1×1000 + 2×100 + 3×10 + 4 + 5×1/10 + 6×1/100, but such expansions usually not considered or deferred in elementary education contexts.
We guarantee you’ll find the right tutor, or we’ll cover the first hour of your lesson.
Club Z! has connected me with a tutor through their online platform! This was exactly the one-on-one attention I needed for my math exam. I was very pleased with the sessions and ClubZ’s online tutoring interface.
My son was suffering from low confidence in his educational abilities. I was in need of help and quick. Club Z! assigned Charlotte (our tutor) and we love her! My son’s grades went from D’s to A’s and B’s.
I’ve been using Club Z’s online classrooms to receive some help and tutoring for 2 of my college classes. I must say that I am very impressed by the functionality and ease of use of their online App. Working online with my tutor has been a piece of cake. Thanks Z.
Jonathan is doing really well in all of his classes this semester, 5 A’s & 2 B’s (he has a computer essentials class instead of PLC). In his Algebra class that Nathan is helping him with he has an A+.
Sarah is very positive, enthusiastic and encourages my daughter to do better each time she comes. My daughter’s grade has improved, we are very grateful for Sarah and that she is tutoring our daughter. Way to go ClubZ!
